package exampleQuestions;

import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.TreeSet;

public class Testy {

	/**
	 * @param args
	 */
	public static void main(String[] args) {

		int[][] a = new int[][] { { 3, 4 }, { 5, 6 }, { 7, 8 } };

		System.out.println(a.length);

		Character c = new Character('1');

		Integer i = new Integer(c - 48);
		System.out.println(i);

		TreeSet<Integer> set = new TreeSet<Integer>();
		set.add(8);
		set.add(18);
		set.add(48);
		set.add(38);

		for (Integer e : set) {
			System.out.print(e + " ");
		}
		
		System.out.println(Math.ceil(5/0.75));

	}

}
